A teenage dream becomes a rock star’s nightmare in Sweetness, which looks like a modern riff on Misery through a Gen Z lens.

The psychological thriller hits Digital February 13 via Saban Films. Watch the trailer below.

When a superfan learns that her rock star idol is spiraling into addiction, she makes it her mission to save him, whether he wants her help or not. But when her desperate plan spirals out of control, she kidnaps him in a delusional attempt to “fix” him.

What begins as compassion turns into...